Static Characteristics of 7/24 Tapered Joint for Machining Center : 1st Report, Effects of Taper Size and Angle Error

抄録

The static bending stiffness and the axial displacement of the 7/24 taper shank tool, which is used in the machining center, have been experimentally investigated. Mainly, the effects of the taper size and angle error were investigated, by changing the tensile force of a draw-in bolt. From the results, It was found that the bending stiffness is affected by the tensile force and the taper angle error. The axial displacements of the taper shank are affected by the taper angle error, but independent of the taper size. In addition, the similarity law of the static bending stiffness is precisely investigated. From the results, it was found that the inclination angle which is the most important factor is in inverse proportion to the second power of the scale factor.